modscode JA

modscode / Gallery / token-usage

token-usage

Pane showing remaining token usage: context window, rate-limit windows, cost

Code you can checkTerminal + desktopPaneBandStatus lineToastBoxButtonText

What it does

  • Draws a band above the prompt, a pane, toasts
  • Adds /usage-band, /usage-detail
  • Hooks session.compact, session.measure, session.start, turn.complete
  • Keeps its own state between turns

Good points

  • No network calls
  • Starts no processes
  • Small: 352 lines
  • Written in TypeScript

Code to start from

Two kinds: a starter modscode writes from the design above, and the lines of the mod's own code that draw it.

Starter (register.tsx)

register.tsx
import type { Register } from 'claude-code'

// Drawn like token-usage by monowu (pane, band, status, toast), as modscode read it from the mod's code:
// https://modscode.com/gallery/monowu-token-usage/
// Written by modscode from that reading, not copied from the mod: use it as you like.
// Each value below stands for one the mod works out at run time; put in your own.
export const register: Register = on => {
  // the band above the prompt; what else goes there is drawn under it
  on('ui.render', { component: 'AbovePrompt' }, async ($, e, next) => {
    const { Box, Text, Button } = $.ui.resolve(e)
    const used = '…'
    const value = '…'
    const paceMark = '…'
    const delta = '…'
    const elapsed = '…'
    const fmtLeft = '…'
    const toLocaleTimeString = '…'
    return (
      <Box flexDirection="column">
        <Box>
          <Text color="#60a5fa" bold>
            {"5h "}
          </Text>
          <Text>
            ████████
          </Text>
          <Text dimColor>
            ░░░░░░░░
            {" "}
          </Text>
          <Text bold>
            {used}
            %
          </Text>
          <Text dimColor>
            {" used · "}
          </Text>
          <Text color="#22c55e">
            {value}
            % left
          </Text>
          <Text bold>
            {" "}
            {paceMark}
            {" "}
            +
            {delta}
            %
          </Text>
          <Text dimColor>
            {" ("}
            {elapsed}
            % of the window elapsed)
          </Text>
          <Text dimColor>
            {" · resets in "}
            {fmtLeft}
          </Text>
          <Text dimColor>
            {" ("}
            {toLocaleTimeString}
            )
          </Text>
          <Box flexGrow={1} justifyContent="flex-end">
            <Button label="Context" />
            <Text>
              {" "}
            </Text>
            <Button label="Details" />
            <Text>
              {" "}
            </Text>
            <Button label="Hide" />
          </Box>
        </Box>
        {await next(e)}
      </Box>
    )
  })

  // the pane: open it with $.ui.open({ id: 'my-pane', title: "Token usage" })
  on('ui.render', { component: 'Pane', requestId: 'my-pane' }, async ($, e) => {
    const { Box, Text } = $.ui.resolve(e)
    const used = '…'
    const fmt = '…'
    const fmt2 = '…'
    const model = '…'
    const name = '…'
    const fmt3 = '…'
    const name2 = '…'
    const fmt4 = '…'
    const name3 = '…'
    const fmt5 = '…'
    const fmt6 = '…'
    const fmt7 = '…'
    const fmt8 = '…'
    const fmt9 = '…'
    const label = '…'
    const percentUsed = '…'
    const value = '…'
    const value2 = '…'
    const paceMark = '…'
    const delta = '…'
    const elapsed = '…'
    const label2 = '…'
    const percentUsed2 = '…'
    const value3 = '…'
    const value4 = '…'
    const paceMark2 = '…'
    const delta2 = '…'
    const elapsed2 = '…'
    const label3 = '…'
    const percentUsed3 = '…'
    const value5 = '…'
    const value6 = '…'
    const paceMark3 = '…'
    const delta3 = '…'
    const elapsed3 = '…'
    const usd = '…'
    return (
      <Box flexDirection="column">
        <Text bold color="#60a5fa">
          Context window
        </Text>
        <Box>
          <Text>
            ████████
          </Text>
          <Text dimColor>
            ░░░░░░░░
          </Text>
          <Text bold>
            {" "}
            {used}
            %
          </Text>
          <Text>
            {" · "}
            0
            {" / "}
            {fmt}
            {" "}
          </Text>
          <Text color="#22c55e">
            {"(left "}
            {fmt2}
            )
          </Text>
        </Box>
        <Box flexDirection="column" marginTop={1}>
          <Text color="#a78bfa">
            {"model "}
            {model}
          </Text>
          <Box>
            <Box width={26}>
              <Text>
                {name}
              </Text>
            </Box>
            <Text bold>
              {fmt3}
            </Text>
          </Box>
          <Box>
            <Box width={26}>
              <Text>
                {name2}
              </Text>
            </Box>
            <Text bold>
              {fmt4}
            </Text>
          </Box>
          <Box>
            <Box width={26}>
              <Text>
                {name3}
              </Text>
            </Box>
            <Text bold>
              {fmt5}
            </Text>
          </Box>
          <Box marginTop={1}>
            <Text dimColor>
              {"last call: "}
            </Text>
            <Text color="#60a5fa">
              {"in "}
              {fmt6}
            </Text>
            <Text dimColor>
              {" · "}
            </Text>
            <Text color="#f97316">
              {"out "}
              {fmt7}
            </Text>
            <Text dimColor>
              {" · "}
            </Text>
            <Text color="#22c55e">
              {"cache read "}
              {fmt8}
            </Text>
            <Text dimColor>
              {" · "}
            </Text>
            <Text color="#eab308">
              {"cache write "}
              {fmt9}
            </Text>
          </Box>
        </Box>
        <Box flexDirection="column" marginTop={1}>
          <Text bold color="#60a5fa">
            Rate limits
          </Text>
          <Text dimColor>
            None reported (not a subscription, or no response yet).
          </Text>
          <Box flexDirection="column">
            <Box>
              <Box width={15}>
                <Text>
                  {label}
                </Text>
              </Box>
              <Text>
                ████████
              </Text>
              <Text dimColor>
                ░░░░░░░░
              </Text>
              <Text bold>
                {" "}
                {percentUsed}
                % used
              </Text>
              <Text color="#22c55e">
                {" · "}
                {value}
                % left
              </Text>
            </Box>
            <Text dimColor>
              {" resets "}
              {value2}
            </Text>
            <Box>
              <Text dimColor>
                {" pace "}
              </Text>
              <Text bold>
                {paceMark}
                {" "}
                +
                {delta}
                %
              </Text>
              <Text dimColor>
                {" ("}
                {elapsed}
                % of the window elapsed)
              </Text>
            </Box>
          </Box>
          <Box flexDirection="column">
            <Box>
              <Box width={15}>
                <Text>
                  {label2}
                </Text>
              </Box>
              <Text>
                ████████
              </Text>
              <Text dimColor>
                ░░░░░░░░
              </Text>
              <Text bold>
                {" "}
                {percentUsed2}
                % used
              </Text>
              <Text color="#22c55e">
                {" · "}
                {value3}
                % left
              </Text>
            </Box>
            <Text dimColor>
              {" resets "}
              {value4}
            </Text>
            <Box>
              <Text dimColor>
                {" pace "}
              </Text>
              <Text bold>
                {paceMark2}
                {" "}
                +
                {delta2}
                %
              </Text>
              <Text dimColor>
                {" ("}
                {elapsed2}
                % of the window elapsed)
              </Text>
            </Box>
          </Box>
          <Box flexDirection="column">
            <Box>
              <Box width={15}>
                <Text>
                  {label3}
                </Text>
              </Box>
              <Text>
                ████████
              </Text>
              <Text dimColor>
                ░░░░░░░░
              </Text>
              <Text bold>
                {" "}
                {percentUsed3}
                % used
              </Text>
              <Text color="#22c55e">
                {" · "}
                {value5}
                % left
              </Text>
            </Box>
            <Text dimColor>
              {" resets "}
              {value6}
            </Text>
            <Box>
              <Text dimColor>
                {" pace "}
              </Text>
              <Text bold>
                {paceMark3}
                {" "}
                +
                {delta3}
                %
              </Text>
              <Text dimColor>
                {" ("}
                {elapsed3}
                % of the window elapsed)
              </Text>
            </Box>
          </Box>
        </Box>
        <Box marginTop={1}>
          <Text bold color="#60a5fa">
            {"Session cost "}
          </Text>
          <Text color="#eab308" bold>
            $
            {usd}
          </Text>
        </Box>
      </Box>
    )
  })

  on('session.start', async ($, e, next) => {
    const skip = '…'
    await $.ui.toast(`Compact skipped: ${skip}`)
    await $.ui.toast(`Typed /compact in the prompt box: press Enter to run it`)
    return next(e)
  })
}

The mod's own code

Shown under the mod's licence (MIT); its text is below. Keep the notice if you copy these lines.

hooks/register.tsx lines 124–236 · Band
hooks/register.tsx:124
  on('ui.render', { component: 'AbovePrompt' }, async ($, e, next) => {
    const u = await read($, usage)
    const hist = (await read($, history)).filter(x => typeof x === 'object')
    if (e.props.hasSurvey || (await read($, isHidden))) return next(e)
    const isQuotaView = await read($, showQuota)
    const { Box, Button, Text } = $.ui.resolve(e)
    const last = hist[hist.length - 1]
    const details = <Button key="details" label="Details" onPress={() => $.ui.open({ id: PANE, title: 'Token usage' })} />
    if (!u || (u.context.tokens === undefined && !last))
      return (
        <Box>
          <Text dimColor>token-usage: waiting for data (send a message)</Text>
          <Box flexGrow={1} justifyContent="flex-end">
            {details}
          </Box>
        </Box>
      )
    const cols = e.props.bodyColumns ?? 80
    // Compact belongs to the context view, next to the readout; the view switch, Details and Hide are pinned right.
    const compact = <Button key="compact" label="Compact" onPress={() => compactNow($)} />
    const pinned = (
      <Box flexGrow={1} justifyContent="flex-end">
        <Button
          key="view"
          label={isQuotaView ? 'Context' : '5h quota'}
          onPress={() => update($, showQuota, shown => !shown)}
        />
        <Text> </Text>
        {details}
        <Text> </Text>
        <Button key="hide" label="Hide" onPress={() => update($, isHidden, () => true)} />
      </Box>
    )

    if (isQuotaView) {
      const fh = (u.rateLimits as any[]).find(r => r.kind === 'five_hour')
      if (!fh)
        return (
          <Box>
            <Text color="#60a5fa" bold>5h </Text>
            <Text dimColor>no quota data (not a subscription, or no response yet) </Text>
            {pinned}
          </Box>
        )
      const used = Math.round(fh.percentUsed)
      const p = pace(fh)
      const left = fh.resetsAt ? new Date(fh.resetsAt).getTime() - Date.now() : NaN
      const filled = Math.min(10, Math.round(fh.percentUsed / 10))
      const isFull = cols >= 110
      const isWide = cols >= 60
      return (
        <Box>
          <Text color="#60a5fa" bold>5h </Text>
          {isWide && <Text color={tone(fh.percentUsed)}>{'█'.repeat(filled)}</Text>}
          {isWide && <Text dimColor>{'░'.repeat(10 - filled)} </Text>}
          <Text color={tone(fh.percentUsed)} bold>
            {used}%
          </Text>
          {isWide && <Text dimColor> used · </Text>}
          {isWide && <Text color="#22c55e">{Math.max(0, 100 - used)}% left</Text>}
          {p && (
            <Text color={paceColor(p.delta)} bold>
              {' '}
              {paceMark(p.delta)} {p.delta >= 0 ? '+' : '-'}
              {Math.abs(Math.round(p.delta))}%
            </Text>
          )}
          {p && isFull && <Text dimColor> ({Math.round(p.elapsed)}% of the window elapsed)</Text>}
          {!Number.isNaN(left) && <Text dimColor> · resets in {fmtLeft(left)}</Text>}
          {isFull && fh.resetsAt && (
            <Text dimColor> ({new Date(fh.resetsAt).toLocaleTimeString([], { hour: 'numeric', minute: '2-digit' })})</Text>
          )}
          {pinned}
        </Box>
      )
    }

    const isLive = u.context.tokens !== undefined
    const pct = isLive ? Math.round(u.context.percent ?? 0) : last.percent
    const shown = hist
    const tokens = isLive ? u.context.tokens : last.tokens
    const icon = weather(pct, frame)
    const delta = shown.length > 1 ? shown[shown.length - 1].tokens - shown[shown.length - 2].tokens : 0
    const isWide = cols >= 60
    return (
      <Box>
        <Box width={4}>
          <Text color={tone(pct)} bold>
            {icon}
          </Text>
        </Box>
        <Text color={tone(pct)} bold>
          {pct}%
        </Text>
        <Text dimColor> · {fmt(tokens)} / {fmt(u.context.window)} </Text>
        {isWide &&
          shown.map(x => (
            <Text color={tone(x.percent)}>■ </Text>
          ))}
        {isWide && (
          <Text color={delta > 0 ? '#f97316' : '#22c55e'}>
            {delta === 0 ? '' : ` ${delta > 0 ? '▲ +' : '▼ '}${fmt(Math.abs(delta))}`}
          </Text>
        )}
        <Text color="#ef4444" bold>
          {pct >= 92 ? ' · Compact soon' : ''}
        </Text>
        <Text>   </Text>
        {compact}
        {pinned}
      </Box>
    )
  })
hooks/register.tsx lines 271–351 · Pane
hooks/register.tsx:271
  on('ui.render', { component: 'Pane', requestId: PANE }, async ($, e) => {
    const { Box, Text } = $.ui.resolve(e)
    const u = await read($, usage)
    if (!u) return <Text dimColor>No data yet.</Text>
    const ctx = u.context
    const b = ctx.breakdown
    const used = Math.round(ctx.percent ?? 0)
    const cells = (pct: number) => Math.round((Math.min(100, Math.max(0, pct)) / 100) * 24)
    return (
      <Box flexDirection="column">
        <Text bold color="#60a5fa">Context window</Text>
        <Box>
          <Text color={tone(used)}>{'█'.repeat(cells(used))}</Text>
          <Text dimColor>{'░'.repeat(24 - cells(used))}</Text>
          <Text color={tone(used)} bold> {used}%</Text>
          <Text> · {fmt(ctx.tokens ?? 0)} / {fmt(ctx.window)} </Text>
          <Text color="#22c55e">(left {fmt(ctx.window - (ctx.tokens ?? 0))})</Text>
        </Box>
        {b && (
          <Box flexDirection="column" marginTop={1}>
            <Text color="#a78bfa">model {b.model}</Text>
            {b.categories
              .filter(c => c.kind === 'used' || c.kind === 'deferred')
              .map(c => (
                <Box>
                  <Box width={26}>
                    <Text color={c.isDeferred ? undefined : c.color} dimColor={c.isDeferred}>{c.name}</Text>
                  </Box>
                  <Text bold>{fmt(c.tokens)}</Text>
                </Box>
              ))}
            {b.apiUsage && (
              <Box marginTop={1}>
                <Text dimColor>last call: </Text>
                <Text color="#60a5fa">in {fmt(b.apiUsage.input_tokens)}</Text>
                <Text dimColor> · </Text>
                <Text color="#f97316">out {fmt(b.apiUsage.output_tokens)}</Text>
                <Text dimColor> · </Text>
                <Text color="#22c55e">cache read {fmt(b.apiUsage.cache_read_input_tokens)}</Text>
                <Text dimColor> · </Text>
                <Text color="#eab308">cache write {fmt(b.apiUsage.cache_creation_input_tokens)}</Text>
              </Box>
            )}
          </Box>
        )}
        <Box flexDirection="column" marginTop={1}>
          <Text bold color="#60a5fa">Rate limits</Text>
          {u.rateLimits.length === 0 && <Text dimColor>None reported (not a subscription, or no response yet).</Text>}
          {u.rateLimits.map(r => (
            <Box flexDirection="column">
              <Box>
                <Box width={15}>
                  <Text>{label(r.kind)}</Text>
                </Box>
                <Text color={tone(r.percentUsed)}>{'█'.repeat(cells(r.percentUsed))}</Text>
                <Text dimColor>{'░'.repeat(24 - cells(r.percentUsed))}</Text>
                <Text color={tone(r.percentUsed)} bold> {Math.round(r.percentUsed)}% used</Text>
                <Text color="#22c55e"> · {Math.round(100 - r.percentUsed)}% left</Text>
              </Box>
              {r.resetsAt && <Text dimColor>  resets {new Date(r.resetsAt).toLocaleString()}</Text>}
              {pace(r) && (
                <Box>
                  <Text dimColor>  pace </Text>
                  <Text color={paceColor(pace(r)!.delta)} bold>
                    {paceMark(pace(r)!.delta)} {pace(r)!.delta >= 0 ? '+' : '-'}{Math.abs(Math.round(pace(r)!.delta))}%
                  </Text>
                  <Text dimColor> ({Math.round(pace(r)!.elapsed)}% of the window elapsed)</Text>
                </Box>
              )}
            </Box>
          ))}
        </Box>
        {u.cost && (
          <Box marginTop={1}>
            <Text bold color="#60a5fa">Session cost </Text>
            <Text color="#eab308" bold>${u.cost.usd.toFixed(2)}</Text>
          </Box>
        )}
      </Box>
    )
  })
Licence text (MIT)
MIT License

Copyright (c) 2026 monowu

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

What its code calls

remembers

The design, read from code

Drawn from the mod's source at the commit read, not from a run: a list is drawn three times, a condition takes its first branch that draws in the desktop app, and a value only the run time knows is shown as a made-up sample (dotted underline) or left out. Colours and type are this site's.

What its code shows

Read from the source at commit 98f3c15a92d8 on 2026-10-06. The first group decides whether a mod is listed; the rest is for you to weigh. A later commit is not read until the next crawl.

Decides the listing: code you can check
Entry readEvery module hooks/hooks.json names was read.hooks/register.tsx
ParsesEvery file parses as TypeScript or JavaScript.1 files parsed
All its code is in the modEvery import is a file of the mod or the engine's own module; no packages, no require.all its code is in the mod
ReadableNo minified lines, no eval or new Function, no import of a computed path, no encoded blobs.no minified code, no eval, no encoded blobs
Calls in the openNetwork and programs are reached as $.http.fetch and $.process.run in place, never passed around.every call outside goes through $ in the open
For you to weigh before installing
Where it drawsThe terminal, the desktop app, both, or nothing (hooks only: a guard or a prompt rewriter), as its code says. Shown, never a reason to leave a mod out.draws in the terminal and the desktop app, the same in both
Install lineWhether its repository's own .claude-plugin/marketplace.json lists it, so it installs from that marketplace with the lines on its page.its repository's .claude-plugin/marketplace.json does not list it: no install line to give
Programs on WindowsWhether every program it starts through $.process exists on Windows (tail, date, open, osascript, /usr/… do not).runs no program a Windows PC lacks
NetworkWhether every fetch names its https host in the code.no network
ProgramsWhether every program it starts is named in the code and is not a shell, an interpreter or a network tool.starts no programs
Reads and sendsWhether it both reads files or environment variables and reaches the network.reaches no network
Keys in the sourceWhether the source holds what looks like an API key or a private key.no keys in the source
LicenceAn open licence (MIT, Apache-2.0, BSD, ISC, Unlicense, 0BSD, CC0) with its text lets modscode show its code; otherwise the code is linked.MIT

This is a reading of the code text, not a security review: it does not run the mod, and it cannot see what a program the mod starts does. The check before installing is yours. How mods are chosen

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Its repository's .claude-plugin/marketplace.json does not list it, so there is no install line to give. Read it as code, or follow its author's README.

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